Mekanisme Peningkatan Reciprocity Channel Probing pada LoRaWAN Menggunakan Savitzky Golay Filter
DOI:
https://doi.org/10.35143/jkt.v8i1.5319Kata Kunci:
LoRa, Correlation Coefficient, Savitzky Golay FilterAbstrak
In wireless communications such as LoRa, it is necessary key generation to secure data. It is intended that the data sent is not easily attacked by attackers. One way to obtain a secure key is a high RSSI correlation coefficient value. In this research, a system was created to improve Reciprocity Channel Probing in order to obtain a high correlation coefficient value. The system is designed using the Savitzky Golay Filter method. The test was carried out in two conditions, namely indoor and outdoor. In addition, the test uses the Spreading Factor value from SF-7 to SF-10. The results of the measurement correlation coefficient in outdoor conditions are better than indoor conditions. The result of the highest measurement correlation coefficient in indoor conditions is 0.51 at SF-10. Meanwhile, in outdoor conditions, the highest measurement correlation coefficient is 0.81 at SF-7. The Savitzky Golay Filter method can increase the correlation coefficient up to 67.52% in indoor testing. The average percentage increase in indoor conditions is more than 30% and outdoor conditions is more than 15%. Therefore, that the Savitzky Golay Filter method is suitable for use in the pre-process stage because it can significantly increase the correlation coefficient.Unduhan
Referensi
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